/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundDocumentInterface.h
UInterfacefor all MetaSound UClasses that implement a MetaSound document as a means for accessing data via code, scripting, execution, or node class generation.
class UMetaSoundDocumentInterface : public [UInterface](API\Runtime\CoreUObject\UObject\UInterface)